Publications (8)
Imaging Earth-like planets with Extremely Large Telescopes
Alain Chelli
We investigate the possiblity to detect Earth-like planets, in the visible and the near infrared domains, with ground based Extremely Large Telescopes equipped with adaptive system…
Pseudomagnitudes and Differential Surface Brightness: Application to the apparent diameter of stars
Alain Chelli, Gilles Duvert, Laurent Bourgès +4
The diameter of a star is a major observable that serves to test the validity of stellar structure theories. It is also a difficult observable that is mostly obtained with indirect…
High spectral resolution imaging of the dynamical atmosphere of the red supergiant Antares in the CO first overtone lines with VLTI/AMBER
Keiichi Ohnaka, Karl-Heinz Hofmann, Dieter Schertl +5
We present high spectral resolution aperture-synthesis imaging of the red supergiant Antares (alpha Sco) in individual CO first overtone lines with VLTI/AMBER. The reconstructed im…
High precision astrometry mission for the detection and characterization of nearby habitable planetary systems with the Nearby Earth Astrometric Telescope (NEAT)
Fabien Malbet, Alain Léger, Michael Shao +49
(abridged) A complete census of planetary systems around a volume-limited sample of solar-type stars (FGK dwarfs) in the Solar neighborhood with uniform sensitivity down to Earth-m…
The third version of the AMBER data reduction software
Fabien Malbet, Gilles Duvert, Florentin Millour +7
We present the third release of the AMBER data reduction software by the JMMC. This software is based on core algorithms optimized after several years of operation. An optional gra…
Phase Closure Nulling: results from the 2009 campaign
Gilles Duvert, Fabien Malbet, Alain Chelli +3
We present here a new observational technique, Phase Closure Nulling (PCN), which has the potential to obtain very high contrast detection and spectroscopy of faint companions to b…
Pseudomagnitude Distances: Application to the Pleiades cluster
Alain Chelli, Gilles Duvert
The concept of pseudomagnitude was recently introduced by Chelli et al. (2016), to estimate apparent stellar diameters using a strictly observational methodology. Pseudomagnitudes…
Building the 'JMMC Stellar Diameters Catalog' using SearchCal
Sylvain Lafrasse, Guillaume Mella, Daniel Bonneau +4
The JMMC Calibrator Workgroup has long developed methods to ascertain the angular diameter of stars, and provides this expertise in the SearchCal software. SearchCal dynamically fi…